I think PotatoFarmer’s post is outdated for the AIO PCB, but I made a post yesterday about how to use Reach M+ with AIO PCB V2.5 standard (PotatoFarmer helped me too). I think it should be the same or similar process in your case.
- I was able to with M+ and V2.5 standard.
- It is.
- It should be.
- I’m not sure, but seems possible to me.